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| EXPERIMENTAL STUDY ON DYNAMIC STIFFNESS OF SINGLE PILE WITH CUSHION CAP |
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Abstract The vertical pressure tests and horizontal torsion tests for four boring piles with cushion cap at a Guangzhou Power Plant by vibrate-excitation are performed；and the compressive stiffness，shear stiffness，bending stiffness and torsion stiffness of single pile are analyzed. The achieved results can provide a technical base for vibration and vibration isolation design of great dynamical machine foundation，adopting the tracking filtering，average and modality identification technique. During the in-situ testing，for the negative effects of the ambience，the tracking filtering，average，and summation modality identification techniques are adopted to remove the interferences of the ambience and other negative effects. Therefore，the precision and the reliability of the test data can be improved effectively；and the test data are validated.
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Received: 18 May 2006
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WANG Zhengzhou1, 2, DENG Huafeng1, 2*, ZHOU Mengxia3, LI Jianlin1, 2, XIAO Yao1, 2, ZHU Wenxi1, 2, ZHOU Shuhuan 1, 2. Degradation mechanism and dynamic property evolution of pre-damaged rock under wetting-drying cycles#br#[J]. , 2026, 45(4): 1148-1161. |
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